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SS'KJ/r/ SS(KJ0r0 SS)KJ1r1 SS*K2J3r3 SS+K2J4r4 SS,K2J5r5 SS-K2J6r6 SS.K2J7r7 SS/K2J8r8 SS0K9J:r: SS1K9J;r; SS2K9Jr> SS4K?J@r@ SS5K?JArA SS6K?JBrB SS7K?JCrC SS8K?JDrD SS9K?JErE SS:K?JFrF SS;K?JGrG SSKKJLrL SS?KMJNrN SS@KOJPrP SSAKQJRrR SSBKSJTrT SSCKSJUrU \"SD\SE9rV"SFSG\5rW\"SH\XSE9rYSI/rZ\"\SJSK/SLQ/SMQ/SNQSO9"SPSI\\55r[\[r\gQ)R) annotations)Any)Callable)Dict)Generic)Iterable)Iterator)Optional)overload)Sequence)Tuple)Type) TYPE_CHECKING)TypeVar)Union)_S)Session)exc)util)create_proxy_methods)ScopedRegistry)ThreadLocalRegistry)warn)warn_deprecated)Protocol) _EntityType)_IdentityKeyType)OrmExecuteOptionsParameter) IdentityMap) ORMOption)Mapper)Query)RowReturningQuery)_BindArguments)_EntityBindKey)_PKIdentityArgument) _SessionBind) sessionmaker)SessionTransaction) Connection) CursorResult)Engine)Result)Row) RowMapping)_CoreAnyExecuteParams)_CoreSingleExecuteParams)CoreExecuteOptionsParameter) ScalarResult)_ColumnsClauseArgument)_T0)_T1)_T2)_T3)_T4)_T5)_T6)_T7)_TypedColumnClauseArgument) Executable) UpdateBase) ClauseElement)TypedColumnsClauseRole)ForUpdateParameter)TypedReturnsRows_T)boundc"\rSrSrSrSSjrSrg)QueryPropertyDescriptorQz|Describes the type applied to a class-level :meth:`_orm.scoped_session.query_property` attribute. .. versionadded:: 2.0.5 cgN)selfinstanceowners N/var/www/auris/envauris/lib/python3.13/site-packages/sqlalchemy/orm/scoping.py__get__QueryPropertyDescriptor.__get__YsCrMN)rOrrPzType[_T]returnz Query[_T])__name__ __module__ __qualname____firstlineno____doc__rR__static_attributes__rMrTrQrIrIQs HrTrI_Oscoped_sessionz:class:`_orm.Session`z$:class:`_orm.scoping.scoped_session`) close_allobject_session identity_key) __contains____iter__addadd_allbegin begin_nestedcloseresetcommit connectiondeleteexecuteexpire expire_allexpunge expunge_allflushgetget_oneget_bind is_modifiedbulk_save_objectsbulk_insert_mappingsbulk_update_mappingsmergequeryrefreshrollbackscalarscalars) binddirtydeletednew identity_map is_active autoflush no_autoflushinfo) classmethodsmethods attributescF \rSrSr%SrSrS\S'S\S'S\S 'SWSXS jjr\SYS j5r SZS jr S[Sjr S\Sjr SWS]Sjjr S^SjrS_SjrS`SaSjjrSbSjrScSdSjjrSeSjrS\SjrS\SjrS\SjrSfSgSjjrShSjr\SW\R6S S S S.SiSjjj5r\SW\R6S S S S.SjSjjj5r\SW\R6S S S S.SkS jjj5rSW\R6S S S S.SkS!jjjrSWSlS"jjrS\S#jrShS$jrS\S%jr SWSmS&jjr!S SS S \R6S S'.SnS(jjr"S SS S \R6S S'.SoS)jjr#SWS S S SS*.SpS+jjjr$S`SqS,jjr%SrSsS-jjr&StSuS.jjr'SvS/jr(SS S0.SwS1jjr)\SxS2j5r*\SyS3j5r*\SzS4j5r*\S{S5j5r*\S|S6j5r*\S}S7j5r*\S~S8j5r*\SS9j5r*\SS:j5r*\SS;j5r*SS<jr*SfSS=jjr+S\S>jr,\SW\R6S S?.SS@jjj5r-\SW\R6S S?.SSAjjj5r-SW\R6S S?.SSBjjjr-\SW\R6S S?.SSCjjj5r.\SW\R6S S?.SSDjjj5r.SW\R6S S?.SSEjjjr.\SSFj5r/\/R`SSGj5r/\SSHj5r1\SSIj5r2\SSJj5r3\SSKj5r4\4R`SSLj5r4\SSMj5r5\SSNj5r6\6R`SSOj5r6\SSPj5r7\SSQj5r8\9S\SRj5r:\9SSSj5r;\9SfS S S ST.SSUjjj5r\rSrSrSUU4SjjrSrg),scoped_session.query_property..queryi.cz>T(aT"UTR5S9$TR5RU5$)N)session)rrz)srOrP query_clsrNs rQrR4scoped_session.query_property..query.__get__/s2$UDMMODD ==?0077rTrMN)rOrrPzType[_O]rU Query[_O])rVrWrXrYrRr[)rrNsrQrzr.s  8 8rTrzrM)rNrrzs`` rQquery_propertyscoped_session.query_propertysL 8 8wrTc8URRU5$)a!Return True if the instance is associated with this session. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. The instance may be pending or persistent within the Session for a result of True. )rrarNrOs rQrascoped_session.__contains__>s}}))(33rTc6URR5$)zIterate over all pending or persistent instances within this Session. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. )rrbrs rQrbscoped_session.__iter__Ns}}%%''rTTc4URRXS9$)aPlace an object into this :class:`_orm.Session`. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. Objects that are in the :term:`transient` state when passed to the :meth:`_orm.Session.add` method will move to the :term:`pending` state, until the next flush, at which point they will move to the :term:`persistent` state. Objects that are in the :term:`detached` state when passed to the :meth:`_orm.Session.add` method will move to the :term:`persistent` state directly. If the transaction used by the :class:`_orm.Session` is rolled back, objects which were transient when they were passed to :meth:`_orm.Session.add` will be moved back to the :term:`transient` state, and will no longer be present within this :class:`_orm.Session`. .. seealso:: :meth:`_orm.Session.add_all` :ref:`session_adding` - at :ref:`session_basics` )_warn)rrc)rNrOrs rQrcscoped_session.add\s@}}   77rTc8URRU5$)aAdd the given collection of instances to this :class:`_orm.Session`. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. See the documentation for :meth:`_orm.Session.add` for a general behavioral description. .. seealso:: :meth:`_orm.Session.add` :ref:`session_adding` - at :ref:`session_basics` )rrd)rN instancess rQrdscoped_session.add_all~s(}}$$Y//rTc4URRUS9$)aBegin a transaction, or nested transaction, on this :class:`.Session`, if one is not already begun. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. The :class:`_orm.Session` object features **autobegin** behavior, so that normally it is not necessary to call the :meth:`_orm.Session.begin` method explicitly. However, it may be used in order to control the scope of when the transactional state is begun. When used to begin the outermost transaction, an error is raised if this :class:`.Session` is already inside of a transaction. :param nested: if True, begins a SAVEPOINT transaction and is equivalent to calling :meth:`~.Session.begin_nested`. For documentation on SAVEPOINT transactions, please see :ref:`session_begin_nested`. :return: the :class:`.SessionTransaction` object. Note that :class:`.SessionTransaction` acts as a Python context manager, allowing :meth:`.Session.begin` to be used in a "with" block. See :ref:`session_explicit_begin` for an example. .. seealso:: :ref:`session_autobegin` :ref:`unitofwork_transaction` :meth:`.Session.begin_nested` )nested)rre)rNrs rQrescoped_session.beginsR}}""&"11rTc6URR5$)aBegin a "nested" transaction on this Session, e.g. SAVEPOINT. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. The target database(s) and associated drivers must support SQL SAVEPOINT for this method to function correctly. For documentation on SAVEPOINT transactions, please see :ref:`session_begin_nested`. :return: the :class:`.SessionTransaction` object. Note that :class:`.SessionTransaction` acts as a context manager, allowing :meth:`.Session.begin_nested` to be used in a "with" block. See :ref:`session_begin_nested` for a usage example. .. seealso:: :ref:`session_begin_nested` :ref:`pysqlite_serializable` - special workarounds required with the SQLite driver in order for SAVEPOINT to work correctly. For asyncio use cases, see the section :ref:`aiosqlite_serializable`. )rrfrs rQrfscoped_session.begin_nesteds>}}))++rTc6URR5$)aClose out the transactional resources and ORM objects used by this :class:`_orm.Session`. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. This expunges all ORM objects associated with this :class:`_orm.Session`, ends any transaction in progress and :term:`releases` any :class:`_engine.Connection` objects which this :class:`_orm.Session` itself has checked out from associated :class:`_engine.Engine` objects. The operation then leaves the :class:`_orm.Session` in a state which it may be used again. .. tip:: In the default running mode the :meth:`_orm.Session.close` method **does not prevent the Session from being used again**. The :class:`_orm.Session` itself does not actually have a distinct "closed" state; it merely means the :class:`_orm.Session` will release all database connections and ORM objects. Setting the parameter :paramref:`_orm.Session.close_resets_only` to ``False`` will instead make the ``close`` final, meaning that any further action on the session will be forbidden. .. versionchanged:: 1.4 The :meth:`.Session.close` method does not immediately create a new :class:`.SessionTransaction` object; instead, the new :class:`.SessionTransaction` is created only if the :class:`.Session` is used again for a database operation. .. seealso:: :ref:`session_closing` - detail on the semantics of :meth:`_orm.Session.close` and :meth:`_orm.Session.reset`. :meth:`_orm.Session.reset` - a similar method that behaves like ``close()`` with the parameter :paramref:`_orm.Session.close_resets_only` set to ``True``. )rrgrs rQrgscoped_session.closes\}}""$$rTc6URR5$)aClose out the transactional resources and ORM objects used by this :class:`_orm.Session`, resetting the session to its initial state. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. This method provides for same "reset-only" behavior that the :meth:`_orm.Session.close` method has provided historically, where the state of the :class:`_orm.Session` is reset as though the object were brand new, and ready to be used again. This method may then be useful for :class:`_orm.Session` objects which set :paramref:`_orm.Session.close_resets_only` to ``False``, so that "reset only" behavior is still available. .. versionadded:: 2.0.22 .. seealso:: :ref:`session_closing` - detail on the semantics of :meth:`_orm.Session.close` and :meth:`_orm.Session.reset`. :meth:`_orm.Session.close` - a similar method will additionally prevent re-use of the Session when the parameter :paramref:`_orm.Session.close_resets_only` is set to ``False``. )rrhrs rQrhscoped_session.resets<}}""$$rTc6URR5$)aDFlush pending changes and commit the current transaction. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. When the COMMIT operation is complete, all objects are fully :term:`expired`, erasing their internal contents, which will be automatically re-loaded when the objects are next accessed. In the interim, these objects are in an expired state and will not function if they are :term:`detached` from the :class:`.Session`. Additionally, this re-load operation is not supported when using asyncio-oriented APIs. The :paramref:`.Session.expire_on_commit` parameter may be used to disable this behavior. When there is no transaction in place for the :class:`.Session`, indicating that no operations were invoked on this :class:`.Session` since the previous call to :meth:`.Session.commit`, the method will begin and commit an internal-only "logical" transaction, that does not normally affect the database unless pending flush changes were detected, but will still invoke event handlers and object expiration rules. The outermost database transaction is committed unconditionally, automatically releasing any SAVEPOINTs in effect. .. seealso:: :ref:`session_committing` :ref:`unitofwork_transaction` :ref:`asyncio_orm_avoid_lazyloads` )rrirs rQriscoped_session.commit0sN}}##%%rTc4URRXS9$)a Return a :class:`_engine.Connection` object corresponding to this :class:`.Session` object's transactional state. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. Either the :class:`_engine.Connection` corresponding to the current transaction is returned, or if no transaction is in progress, a new one is begun and the :class:`_engine.Connection` returned (note that no transactional state is established with the DBAPI until the first SQL statement is emitted). Ambiguity in multi-bind or unbound :class:`.Session` objects can be resolved through any of the optional keyword arguments. This ultimately makes usage of the :meth:`.get_bind` method for resolution. :param bind_arguments: dictionary of bind arguments. May include "mapper", "bind", "clause", other custom arguments that are passed to :meth:`.Session.get_bind`. :param execution_options: a dictionary of execution options that will be passed to :meth:`_engine.Connection.execution_options`, **when the connection is first procured only**. If the connection is already present within the :class:`.Session`, a warning is emitted and the arguments are ignored. .. seealso:: :ref:`session_transaction_isolation` )bind_argumentsexecution_options)rrj)rNrrs rQrjscoped_session.connectionYs$R}}'')(  rTc8URRU5$)auMark an instance as deleted. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. The object is assumed to be either :term:`persistent` or :term:`detached` when passed; after the method is called, the object will remain in the :term:`persistent` state until the next flush proceeds. During this time, the object will also be a member of the :attr:`_orm.Session.deleted` collection. When the next flush proceeds, the object will move to the :term:`deleted` state, indicating a ``DELETE`` statement was emitted for its row within the current transaction. When the transaction is successfully committed, the deleted object is moved to the :term:`detached` state and is no longer present within this :class:`_orm.Session`. .. seealso:: :ref:`session_deleting` - at :ref:`session_basics` )rrkrs rQrkscoped_session.deletes8}}##H--rT)rr_parent_execute_state _add_eventcgrLrMrN statementparamsrrrrs rQrlscoped_session.executesrTcgrLrMrs rQrlrs rTcgrLrMrs rQrlrsrTc >URRUUUUUUS9$)a;Execute a SQL expression construct. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. Returns a :class:`_engine.Result` object representing results of the statement execution. E.g.:: from sqlalchemy import select result = session.execute(select(User).where(User.id == 5)) The API contract of :meth:`_orm.Session.execute` is similar to that of :meth:`_engine.Connection.execute`, the :term:`2.0 style` version of :class:`_engine.Connection`. .. versionchanged:: 1.4 the :meth:`_orm.Session.execute` method is now the primary point of ORM statement execution when using :term:`2.0 style` ORM usage. :param statement: An executable statement (i.e. an :class:`.Executable` expression such as :func:`_expression.select`). :param params: Optional dictionary, or list of dictionaries, containing bound parameter values. If a single dictionary, single-row execution occurs; if a list of dictionaries, an "executemany" will be invoked. The keys in each dictionary must correspond to parameter names present in the statement. :param execution_options: optional dictionary of execution options, which will be associated with the statement execution. This dictionary can provide a subset of the options that are accepted by :meth:`_engine.Connection.execution_options`, and may also provide additional options understood only in an ORM context. .. seealso:: :ref:`orm_queryguide_execution_options` - ORM-specific execution options :param bind_arguments: dictionary of additional arguments to determine the bind. May include "mapper", "bind", or other custom arguments. Contents of this dictionary are passed to the :meth:`.Session.get_bind` method. :return: a :class:`_engine.Result` object. )rrrrr)rrlrs rQrlrs3F}}$$ /)"7! %  rTc4URRXS9$)aExpire the attributes on an instance. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. Marks the attributes of an instance as out of date. When an expired attribute is next accessed, a query will be issued to the :class:`.Session` object's current transactional context in order to load all expired attributes for the given instance. Note that a highly isolated transaction will return the same values as were previously read in that same transaction, regardless of changes in database state outside of that transaction. To expire all objects in the :class:`.Session` simultaneously, use :meth:`Session.expire_all`. The :class:`.Session` object's default behavior is to expire all state whenever the :meth:`Session.rollback` or :meth:`Session.commit` methods are called, so that new state can be loaded for the new transaction. For this reason, calling :meth:`Session.expire` only makes sense for the specific case that a non-ORM SQL statement was emitted in the current transaction. :param instance: The instance to be refreshed. :param attribute_names: optional list of string attribute names indicating a subset of attributes to be expired. .. seealso:: :ref:`session_expire` - introductory material :meth:`.Session.expire` :meth:`.Session.refresh` :meth:`_orm.Query.populate_existing` )attribute_names)rrm)rNrOrs rQrmscoped_session.expires\}}##H#NNrTc6URR5$)aExpires all persistent instances within this Session. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. When any attributes on a persistent instance is next accessed, a query will be issued using the :class:`.Session` object's current transactional context in order to load all expired attributes for the given instance. Note that a highly isolated transaction will return the same values as were previously read in that same transaction, regardless of changes in database state outside of that transaction. To expire individual objects and individual attributes on those objects, use :meth:`Session.expire`. The :class:`.Session` object's default behavior is to expire all state whenever the :meth:`Session.rollback` or :meth:`Session.commit` methods are called, so that new state can be loaded for the new transaction. For this reason, calling :meth:`Session.expire_all` is not usually needed, assuming the transaction is isolated. .. seealso:: :ref:`session_expire` - introductory material :meth:`.Session.expire` :meth:`.Session.refresh` :meth:`_orm.Query.populate_existing` )rrnrs rQrnscoped_session.expire_allDsN}}''))rTc8URRU5$)a:Remove the `instance` from this ``Session``. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. This will free all internal references to the instance. Cascading will be applied according to the *expunge* cascade rule. )rrors rQroscoped_session.expungems}}$$X..rTc6URR5$)aRemove all object instances from this ``Session``. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. This is equivalent to calling ``expunge(obj)`` on all objects in this ``Session``. )rrprs rQrpscoped_session.expunge_all}s}}((**rTc4URRUS9$)aFlush all the object changes to the database. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. Writes out all pending object creations, deletions and modifications to the database as INSERTs, DELETEs, UPDATEs, etc. Operations are automatically ordered by the Session's unit of work dependency solver. Database operations will be issued in the current transactional context and do not affect the state of the transaction, unless an error occurs, in which case the entire transaction is rolled back. You may flush() as often as you like within a transaction to move changes from Python to the database's transaction buffer. :param objects: Optional; restricts the flush operation to operate only on elements that are in the given collection. This feature is for an extremely narrow set of use cases where particular objects may need to be operated upon before the full flush() occurs. It is not intended for general use. )objects)rrq)rNrs rQrqscoped_session.flushs:}}""7"33rToptionspopulate_existingwith_for_updateidentity_tokenrrc BURRUUUUUUUUS9$)aReturn an instance based on the given primary key identifier, or ``None`` if not found. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. E.g.:: my_user = session.get(User, 5) some_object = session.get(VersionedFoo, (5, 10)) some_object = session.get(VersionedFoo, {"id": 5, "version_id": 10}) .. versionadded:: 1.4 Added :meth:`_orm.Session.get`, which is moved from the now legacy :meth:`_orm.Query.get` method. :meth:`_orm.Session.get` is special in that it provides direct access to the identity map of the :class:`.Session`. If the given primary key identifier is present in the local identity map, the object is returned directly from this collection and no SQL is emitted, unless the object has been marked fully expired. If not present, a SELECT is performed in order to locate the object. :meth:`_orm.Session.get` also will perform a check if the object is present in the identity map and marked as expired - a SELECT is emitted to refresh the object as well as to ensure that the row is still present. If not, :class:`~sqlalchemy.orm.exc.ObjectDeletedError` is raised. :param entity: a mapped class or :class:`.Mapper` indicating the type of entity to be loaded. :param ident: A scalar, tuple, or dictionary representing the primary key. For a composite (e.g. multiple column) primary key, a tuple or dictionary should be passed. For a single-column primary key, the scalar calling form is typically the most expedient. If the primary key of a row is the value "5", the call looks like:: my_object = session.get(SomeClass, 5) The tuple form contains primary key values typically in the order in which they correspond to the mapped :class:`_schema.Table` object's primary key columns, or if the :paramref:`_orm.Mapper.primary_key` configuration parameter were used, in the order used for that parameter. For example, if the primary key of a row is represented by the integer digits "5, 10" the call would look like:: my_object = session.get(SomeClass, (5, 10)) The dictionary form should include as keys the mapped attribute names corresponding to each element of the primary key. If the mapped class has the attributes ``id``, ``version_id`` as the attributes which store the object's primary key value, the call would look like:: my_object = session.get(SomeClass, {"id": 5, "version_id": 10}) :param options: optional sequence of loader options which will be applied to the query, if one is emitted. :param populate_existing: causes the method to unconditionally emit a SQL query and refresh the object with the newly loaded data, regardless of whether or not the object is already present. :param with_for_update: optional boolean ``True`` indicating FOR UPDATE should be used, or may be a dictionary containing flags to indicate a more specific set of FOR UPDATE flags for the SELECT; flags should match the parameters of :meth:`_query.Query.with_for_update`. Supersedes the :paramref:`.Session.refresh.lockmode` parameter. :param execution_options: optional dictionary of execution options, which will be associated with the query execution if one is emitted. This dictionary can provide a subset of the options that are accepted by :meth:`_engine.Connection.execution_options`, and may also provide additional options understood only in an ORM context. .. versionadded:: 1.4.29 .. seealso:: :ref:`orm_queryguide_execution_options` - ORM-specific execution options :param bind_arguments: dictionary of additional arguments to determine the bind. May include "mapper", "bind", or other custom arguments. Contents of this dictionary are passed to the :meth:`.Session.get_bind` method. .. versionadded: 2.0.0rc1 :return: The object instance, or ``None``. r)rrr rNentityidentrrrrrrs rQrrscoped_session.gets9l}}   /+)/)!  rTc BURRUUUUUUUUS9$)abReturn exactly one instance based on the given primary key identifier, or raise an exception if not found. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. Raises :class:`_exc.NoResultFound` if the query selects no rows. For a detailed documentation of the arguments see the method :meth:`.Session.get`. .. versionadded:: 2.0.22 :return: The object instance. .. seealso:: :meth:`.Session.get` - equivalent method that instead returns ``None`` if no row was found with the provided primary key r)rrsrs rQrsscoped_session.get_one-s9L}}$$  /+)/)%  rT)clauser_sa_skip_events_sa_skip_for_implicit_returningc FURR"SUUUUUS.UD6$)a Return a "bind" to which this :class:`.Session` is bound. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. The "bind" is usually an instance of :class:`_engine.Engine`, except in the case where the :class:`.Session` has been explicitly bound directly to a :class:`_engine.Connection`. For a multiply-bound or unbound :class:`.Session`, the ``mapper`` or ``clause`` arguments are used to determine the appropriate bind to return. Note that the "mapper" argument is usually present when :meth:`.Session.get_bind` is called via an ORM operation such as a :meth:`.Session.query`, each individual INSERT/UPDATE/DELETE operation within a :meth:`.Session.flush`, call, etc. The order of resolution is: 1. if mapper given and :paramref:`.Session.binds` is present, locate a bind based first on the mapper in use, then on the mapped class in use, then on any base classes that are present in the ``__mro__`` of the mapped class, from more specific superclasses to more general. 2. if clause given and ``Session.binds`` is present, locate a bind based on :class:`_schema.Table` objects found in the given clause present in ``Session.binds``. 3. if ``Session.binds`` is present, return that. 4. if clause given, attempt to return a bind linked to the :class:`_schema.MetaData` ultimately associated with the clause. 5. if mapper given, attempt to return a bind linked to the :class:`_schema.MetaData` ultimately associated with the :class:`_schema.Table` or other selectable to which the mapper is mapped. 6. No bind can be found, :exc:`~sqlalchemy.exc.UnboundExecutionError` is raised. Note that the :meth:`.Session.get_bind` method can be overridden on a user-defined subclass of :class:`.Session` to provide any kind of bind resolution scheme. See the example at :ref:`session_custom_partitioning`. :param mapper: Optional mapped class or corresponding :class:`_orm.Mapper` instance. The bind can be derived from a :class:`_orm.Mapper` first by consulting the "binds" map associated with this :class:`.Session`, and secondly by consulting the :class:`_schema.MetaData` associated with the :class:`_schema.Table` to which the :class:`_orm.Mapper` is mapped for a bind. :param clause: A :class:`_expression.ClauseElement` (i.e. :func:`_expression.select`, :func:`_expression.text`, etc.). If the ``mapper`` argument is not present or could not produce a bind, the given expression construct will be searched for a bound element, typically a :class:`_schema.Table` associated with bound :class:`_schema.MetaData`. .. seealso:: :ref:`session_partitioning` :paramref:`.Session.binds` :meth:`.Session.bind_mapper` :meth:`.Session.bind_table` )mapperrrrrrM)rrt)rNrrrrrrs rQrtscoped_session.get_bind^s:p}}%% +,K     rTc4URRXS9$)a Return ``True`` if the given instance has locally modified attributes. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. This method retrieves the history for each instrumented attribute on the instance and performs a comparison of the current value to its previously flushed or committed value, if any. It is in effect a more expensive and accurate version of checking for the given instance in the :attr:`.Session.dirty` collection; a full test for each attribute's net "dirty" status is performed. E.g.:: return session.is_modified(someobject) A few caveats to this method apply: * Instances present in the :attr:`.Session.dirty` collection may report ``False`` when tested with this method. This is because the object may have received change events via attribute mutation, thus placing it in :attr:`.Session.dirty`, but ultimately the state is the same as that loaded from the database, resulting in no net change here. * Scalar attributes may not have recorded the previously set value when a new value was applied, if the attribute was not loaded, or was expired, at the time the new value was received - in these cases, the attribute is assumed to have a change, even if there is ultimately no net change against its database value. SQLAlchemy in most cases does not need the "old" value when a set event occurs, so it skips the expense of a SQL call if the old value isn't present, based on the assumption that an UPDATE of the scalar value is usually needed, and in those few cases where it isn't, is less expensive on average than issuing a defensive SELECT. The "old" value is fetched unconditionally upon set only if the attribute container has the ``active_history`` flag set to ``True``. This flag is set typically for primary key attributes and scalar object references that are not a simple many-to-one. To set this flag for any arbitrary mapped column, use the ``active_history`` argument with :func:`.column_property`. :param instance: mapped instance to be tested for pending changes. :param include_collections: Indicates if multivalued collections should be included in the operation. Setting this to ``False`` is a way to detect only local-column based properties (i.e. scalar columns or many-to-one foreign keys) that would result in an UPDATE for this instance upon flush. )include_collections)rru)rNrOrs rQruscoped_session.is_modifieds$x}}(( )  rTc:URRUUUUS9$)a Perform a bulk save of the given list of objects. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. .. legacy:: This method is a legacy feature as of the 2.0 series of SQLAlchemy. For modern bulk INSERT and UPDATE, see the sections :ref:`orm_queryguide_bulk_insert` and :ref:`orm_queryguide_bulk_update`. For general INSERT and UPDATE of existing ORM mapped objects, prefer standard :term:`unit of work` data management patterns, introduced in the :ref:`unified_tutorial` at :ref:`tutorial_orm_data_manipulation`. SQLAlchemy 2.0 now uses :ref:`engine_insertmanyvalues` with modern dialects which solves previous issues of bulk INSERT slowness. :param objects: a sequence of mapped object instances. The mapped objects are persisted as is, and are **not** associated with the :class:`.Session` afterwards. For each object, whether the object is sent as an INSERT or an UPDATE is dependent on the same rules used by the :class:`.Session` in traditional operation; if the object has the :attr:`.InstanceState.key` attribute set, then the object is assumed to be "detached" and will result in an UPDATE. Otherwise, an INSERT is used. In the case of an UPDATE, statements are grouped based on which attributes have changed, and are thus to be the subject of each SET clause. If ``update_changed_only`` is False, then all attributes present within each object are applied to the UPDATE statement, which may help in allowing the statements to be grouped together into a larger executemany(), and will also reduce the overhead of checking history on attributes. :param return_defaults: when True, rows that are missing values which generate defaults, namely integer primary key defaults and sequences, will be inserted **one at a time**, so that the primary key value is available. In particular this will allow joined-inheritance and other multi-table mappings to insert correctly without the need to provide primary key values ahead of time; however, :paramref:`.Session.bulk_save_objects.return_defaults` **greatly reduces the performance gains** of the method overall. It is strongly advised to please use the standard :meth:`_orm.Session.add_all` approach. :param update_changed_only: when True, UPDATE statements are rendered based on those attributes in each state that have logged changes. When False, all attributes present are rendered into the SET clause with the exception of primary key attributes. :param preserve_order: when True, the order of inserts and updates matches exactly the order in which the objects are given. When False, common types of objects are grouped into inserts and updates, to allow for more batching opportunities. .. seealso:: :doc:`queryguide/dml` :meth:`.Session.bulk_insert_mappings` :meth:`.Session.bulk_update_mappings` )return_defaultsupdate_changed_onlypreserve_order)rrv)rNrrrrs rQrv scoped_session.bulk_save_objectss-^}}.. + 3) /  rTc:URRUUUUS9$)a4 Perform a bulk insert of the given list of mapping dictionaries. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. .. legacy:: This method is a legacy feature as of the 2.0 series of SQLAlchemy. For modern bulk INSERT and UPDATE, see the sections :ref:`orm_queryguide_bulk_insert` and :ref:`orm_queryguide_bulk_update`. The 2.0 API shares implementation details with this method and adds new features as well. :param mapper: a mapped class, or the actual :class:`_orm.Mapper` object, representing the single kind of object represented within the mapping list. :param mappings: a sequence of dictionaries, each one containing the state of the mapped row to be inserted, in terms of the attribute names on the mapped class. If the mapping refers to multiple tables, such as a joined-inheritance mapping, each dictionary must contain all keys to be populated into all tables. :param return_defaults: when True, the INSERT process will be altered to ensure that newly generated primary key values will be fetched. The rationale for this parameter is typically to enable :ref:`Joined Table Inheritance ` mappings to be bulk inserted. .. note:: for backends that don't support RETURNING, the :paramref:`_orm.Session.bulk_insert_mappings.return_defaults` parameter can significantly decrease performance as INSERT statements can no longer be batched. See :ref:`engine_insertmanyvalues` for background on which backends are affected. :param render_nulls: When True, a value of ``None`` will result in a NULL value being included in the INSERT statement, rather than the column being omitted from the INSERT. This allows all the rows being INSERTed to have the identical set of columns which allows the full set of rows to be batched to the DBAPI. Normally, each column-set that contains a different combination of NULL values than the previous row must omit a different series of columns from the rendered INSERT statement, which means it must be emitted as a separate statement. By passing this flag, the full set of rows are guaranteed to be batchable into one batch; the cost however is that server-side defaults which are invoked by an omitted column will be skipped, so care must be taken to ensure that these are not necessary. .. warning:: When this flag is set, **server side default SQL values will not be invoked** for those columns that are inserted as NULL; the NULL value will be sent explicitly. Care must be taken to ensure that no server-side default functions need to be invoked for the operation as a whole. .. seealso:: :doc:`queryguide/dml` :meth:`.Session.bulk_save_objects` :meth:`.Session.bulk_update_mappings` )r render_nulls)rrw)rNrmappingsrrs rQrw#scoped_session.bulk_insert_mappingsUs-`}}11  +% 2  rTc8URRX5$)a0Perform a bulk update of the given list of mapping dictionaries. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. .. legacy:: This method is a legacy feature as of the 2.0 series of SQLAlchemy. For modern bulk INSERT and UPDATE, see the sections :ref:`orm_queryguide_bulk_insert` and :ref:`orm_queryguide_bulk_update`. The 2.0 API shares implementation details with this method and adds new features as well. :param mapper: a mapped class, or the actual :class:`_orm.Mapper` object, representing the single kind of object represented within the mapping list. :param mappings: a sequence of dictionaries, each one containing the state of the mapped row to be updated, in terms of the attribute names on the mapped class. If the mapping refers to multiple tables, such as a joined-inheritance mapping, each dictionary may contain keys corresponding to all tables. All those keys which are present and are not part of the primary key are applied to the SET clause of the UPDATE statement; the primary key values, which are required, are applied to the WHERE clause. .. seealso:: :doc:`queryguide/dml` :meth:`.Session.bulk_insert_mappings` :meth:`.Session.bulk_save_objects` )rrx)rNrrs rQrx#scoped_session.bulk_update_mappingssZ}}11&CCrTloadrc6URRXUS9$)a= Copy the state of a given instance into a corresponding instance within this :class:`.Session`. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. :meth:`.Session.merge` examines the primary key attributes of the source instance, and attempts to reconcile it with an instance of the same primary key in the session. If not found locally, it attempts to load the object from the database based on primary key, and if none can be located, creates a new instance. The state of each attribute on the source instance is then copied to the target instance. The resulting target instance is then returned by the method; the original source instance is left unmodified, and un-associated with the :class:`.Session` if not already. This operation cascades to associated instances if the association is mapped with ``cascade="merge"``. See :ref:`unitofwork_merging` for a detailed discussion of merging. :param instance: Instance to be merged. :param load: Boolean, when False, :meth:`.merge` switches into a "high performance" mode which causes it to forego emitting history events as well as all database access. This flag is used for cases such as transferring graphs of objects into a :class:`.Session` from a second level cache, or to transfer just-loaded objects into the :class:`.Session` owned by a worker thread or process without re-querying the database. The ``load=False`` use case adds the caveat that the given object has to be in a "clean" state, that is, has no pending changes to be flushed - even if the incoming object is detached from any :class:`.Session`. This is so that when the merge operation populates local attributes and cascades to related objects and collections, the values can be "stamped" onto the target object as is, without generating any history or attribute events, and without the need to reconcile the incoming data with any existing related objects or collections that might not be loaded. The resulting objects from ``load=False`` are always produced as "clean", so it is only appropriate that the given objects should be "clean" as well, else this suggests a mis-use of the method. :param options: optional sequence of loader options which will be applied to the :meth:`_orm.Session.get` method when the merge operation loads the existing version of the object from the database. .. versionadded:: 1.4.24 .. seealso:: :func:`.make_transient_to_detached` - provides for an alternative means of "merging" a single object into the :class:`.Session` r )rry)rNrOr rs rQryscoped_session.mergesH}}""8"HHrTcgrLrM)rN_entitys rQrzscoped_session.query!s` feature instead. Note that a highly isolated transaction will return the same values as were previously read in that same transaction, regardless of changes in database state outside of that transaction. Refreshing attributes usually only makes sense at the start of a transaction where database rows have not yet been accessed. :param attribute_names: optional. An iterable collection of string attribute names indicating a subset of attributes to be refreshed. :param with_for_update: optional boolean ``True`` indicating FOR UPDATE should be used, or may be a dictionary containing flags to indicate a more specific set of FOR UPDATE flags for the SELECT; flags should match the parameters of :meth:`_query.Query.with_for_update`. Supersedes the :paramref:`.Session.refresh.lockmode` parameter. .. seealso:: :ref:`session_expire` - introductory material :meth:`.Session.expire` :meth:`.Session.expire_all` :ref:`orm_queryguide_populate_existing` - allows any ORM query to refresh objects as they would be loaded normally. )rr)rr{)rNrOrrs rQr{scoped_session.refreshs*d}}$$ ++%  rTc6URR5$)aRollback the current transaction in progress. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. If no transaction is in progress, this method is a pass-through. The method always rolls back the topmost database transaction, discarding any nested transactions that may be in progress. .. seealso:: :ref:`session_rollback` :ref:`unitofwork_transaction` )rr|rs rQr|scoped_session.rollbacks.}}%%''rT)rrc grLrMrNrrrrrs rQr}scoped_session.scalarsrTc grLrMr*s rQr}r+srTc DURR"U4UUUS.UD6$)a8Execute a statement and return a scalar result. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. Usage and parameters are the same as that of :meth:`_orm.Session.execute`; the return result is a scalar Python value. rrr)rr}r*s rQr}r+s6.}}##  /)     rTc grLrMr*s rQr~scoped_session.scalars8srTc grLrMr*s rQr~r0Cs rTc DURR"U4UUUS.UD6$)aExecute a statement and return the results as scalars. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. Usage and parameters are the same as that of :meth:`_orm.Session.execute`; the return result is a :class:`_result.ScalarResult` filtering object which will return single elements rather than :class:`_row.Row` objects. :return: a :class:`_result.ScalarResult` object .. versionadded:: 1.4.24 Added :meth:`_orm.Session.scalars` .. versionadded:: 1.4.26 Added :meth:`_orm.scoped_session.scalars` .. seealso:: :ref:`orm_queryguide_select_orm_entities` - contrasts the behavior of :meth:`_orm.Session.execute` to :meth:`_orm.Session.scalars` r.)rr~r*s rQr~r0Ns7F}}$$  /)     rTc.URR$)zpProxy for the :attr:`_orm.Session.bind` attribute on behalf of the :class:`_orm.scoping.scoped_session` class. rrrs rQrscoped_session.bindys}}!!!rTc$XRlgrLr4rNattrs rQrr5s ! rTc.URR$)aqThe set of all persistent instances considered dirty. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. E.g.:: some_mapped_object in session.dirty Instances are considered dirty when they were modified but not deleted. Note that this 'dirty' calculation is 'optimistic'; most attribute-setting or collection modification operations will mark an instance as 'dirty' and place it in this set, even if there is no net change to the attribute's value. At flush time, the value of each attribute is compared to its previously saved value, and if there's no net change, no SQL operation will occur (this is a more expensive operation so it's only done at flush time). To check if an instance has actionable net changes to its attributes, use the :meth:`.Session.is_modified` method. )rrrs rQrscoped_session.dirtys>}}"""rTc.URR$)zThe set of all instances marked as 'deleted' within this ``Session`` .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. )rrrs rQrscoped_session.deleteds}}$$$rTc.URR$)zThe set of all instances marked as 'new' within this ``Session``. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. )rrrs rQrscoped_session.news}}   rTc.URR$)zxProxy for the :attr:`_orm.Session.identity_map` attribute on behalf of the :class:`_orm.scoping.scoped_session` class. rrrs rQrscoped_session.identity_maps}})))rTc$XRlgrLr@r7s rQrrAs %) "rTc.URR$)a;True if this :class:`.Session` not in "partial rollback" state. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. .. versionchanged:: 1.4 The :class:`_orm.Session` no longer begins a new transaction immediately, so this attribute will be False when the :class:`_orm.Session` is first instantiated. "partial rollback" state typically indicates that the flush process of the :class:`_orm.Session` has failed, and that the :meth:`_orm.Session.rollback` method must be emitted in order to fully roll back the transaction. If this :class:`_orm.Session` is not in a transaction at all, the :class:`_orm.Session` will autobegin when it is first used, so in this case :attr:`_orm.Session.is_active` will return True. Otherwise, if this :class:`_orm.Session` is within a transaction, and that transaction has not been rolled back internally, the :attr:`_orm.Session.is_active` will also return True. .. seealso:: :ref:`faq_session_rollback` :meth:`_orm.Session.in_transaction` )rrrs rQrscoped_session.is_activesF}}&&&rTc.URR$)zuProxy for the :attr:`_orm.Session.autoflush` attribute on behalf of the :class:`_orm.scoping.scoped_session` class. rrrs rQrscoped_session.autoflushs}}&&&rTc$XRlgrLrFr7s rQrrGs "& rTc.URR$)aReturn a context manager that disables autoflush. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. e.g.:: with session.no_autoflush: some_object = SomeClass() session.add(some_object) # won't autoflush some_object.related_thing = session.query(SomeRelated).first() Operations that proceed within the ``with:`` block will not be subject to flushes occurring upon query access. This is useful when initializing a series of objects which involve existing database queries, where the uncompleted object should not yet be flushed. )rrrs rQrscoped_session.no_autoflushs6}})))rTc.URR$)aA user-modifiable dictionary. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. The initial value of this dictionary can be populated using the ``info`` argument to the :class:`.Session` constructor or :class:`.sessionmaker` constructor or factory methods. The dictionary here is always local to this :class:`.Session` and can be modified independently of all other :class:`.Session` objects. )rrrs rQrscoped_session.infos$}}!!!rTc,[R"5$)aWClose *all* sessions in memory. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. .. deprecated:: 1.3 The :meth:`.Session.close_all` method is deprecated and will be removed in a future release. Please refer to :func:`.session.close_all_sessions`. )rr^)clss rQr^scoped_session.close_all1s  ""rTc.[R"U5$)zReturn the :class:`.Session` to which an object belongs. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. This is an alias of :func:`.object_session`. )rr_)rNrOs rQr_scoped_session.object_session@s%%h//rT)rOrowrc2[R"UUUUUS9$)zReturn an identity key. .. container:: class_bases Proxied for the :class:`_orm.Session` class on behalf of the :class:`_orm.scoping.scoped_session` class. 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